3.2.4 LHMI functionality
3.2.4.1 Protection and alarm indication
Protection indicators
Protection indicator LEDs are Ready, Start and Trip.
Table 7: Ready LED
LED state Description
Off Auxiliary supply voltage is disconnected.
On Normal operation.
Flashing Internal fault has occurred or the IED is in test mode. Internal faults are
accompanied by an indication message.
Table 8: Start LED
LED state Description
Off Normal operation.
On A protection function has started and an indication message is displayed.
• If several protection functions start within a short time, the last start is
indicated on the display.
Flashing A protection function is blocked.
• The blocking indication disappears when the blocking is removed or
when the protection function is reset.
Table 9: Trip LED
LED state
Description
Off Normal operation.
On A protection function has tripped and an indication message is displayed.
• The trip indication is latching and must be reset via communication or
by pressing
.
• If several protection functions trip within a short time, the last trip is
indicated on the display.
Alarm indicators
The 11 matrix programmable LEDs are used for alarm indication.
1MRS756708 A Section 3
615 series overview
615 series 21
Operation Manual
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